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1210 lines
41 KiB
1210 lines
41 KiB
<?php
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// This file is part of Moodle - http://moodle.org/
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//
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// Moodle is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// Moodle is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with Moodle. If not, see <http://www.gnu.org/licenses/>.
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/**
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* Contains classes, functions and constants used in badges.
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*
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* @package core
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* @subpackage badges
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* @copyright 2012 onwards Totara Learning Solutions Ltd {@link http://www.totaralms.com/}
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* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
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* @author Yuliya Bozhko <yuliya.bozhko@totaralms.com>
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*/
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defined('MOODLE_INTERNAL') || die();
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/* Include required award criteria library. */
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require_once($CFG->dirroot . '/badges/criteria/award_criteria.php');
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/*
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* Number of records per page.
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*/
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define('BADGE_PERPAGE', 50);
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/*
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* Badge award criteria aggregation method.
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*/
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define('BADGE_CRITERIA_AGGREGATION_ALL', 1);
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/*
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* Badge award criteria aggregation method.
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*/
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define('BADGE_CRITERIA_AGGREGATION_ANY', 2);
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/*
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* Inactive badge means that this badge cannot be earned and has not been awarded
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* yet. Its award criteria can be changed.
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*/
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define('BADGE_STATUS_INACTIVE', 0);
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/*
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* Active badge means that this badge can we earned, but it has not been awarded
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* yet. Can be deactivated for the purpose of changing its criteria.
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*/
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define('BADGE_STATUS_ACTIVE', 1);
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/*
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* Inactive badge can no longer be earned, but it has been awarded in the past and
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* therefore its criteria cannot be changed.
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*/
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define('BADGE_STATUS_INACTIVE_LOCKED', 2);
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/*
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* Active badge means that it can be earned and has already been awarded to users.
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* Its criteria cannot be changed any more.
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*/
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define('BADGE_STATUS_ACTIVE_LOCKED', 3);
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/*
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* Archived badge is considered deleted and can no longer be earned and is not
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* displayed in the list of all badges.
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*/
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define('BADGE_STATUS_ARCHIVED', 4);
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/*
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* Badge type for site badges.
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*/
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define('BADGE_TYPE_SITE', 1);
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/*
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* Badge type for course badges.
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*/
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define('BADGE_TYPE_COURSE', 2);
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/*
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* Badge messaging schedule options.
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*/
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define('BADGE_MESSAGE_NEVER', 0);
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define('BADGE_MESSAGE_ALWAYS', 1);
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define('BADGE_MESSAGE_DAILY', 2);
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define('BADGE_MESSAGE_WEEKLY', 3);
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define('BADGE_MESSAGE_MONTHLY', 4);
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/*
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* URL of backpack. Custom ones can be added.
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*/
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define('BADGE_BACKPACKAPIURL', 'https://backpack.openbadges.org');
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define('BADGE_BACKPACKWEBURL', 'https://backpack.openbadges.org');
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define('BADGRIO_BACKPACKAPIURL', 'https://api.badgr.io/v2');
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define('BADGRIO_BACKPACKWEBURL', 'https://badgr.io');
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/*
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* @deprecated since 3.7. Use the urls in the badge_external_backpack table instead.
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*/
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define('BADGE_BACKPACKURL', 'https://backpack.openbadges.org');
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/*
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* Open Badges specifications.
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*/
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define('OPEN_BADGES_V1', 1);
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define('OPEN_BADGES_V2', 2);
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/*
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* Only use for Open Badges 2.0 specification
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*/
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define('OPEN_BADGES_V2_CONTEXT', 'https://w3id.org/openbadges/v2');
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define('OPEN_BADGES_V2_TYPE_ASSERTION', 'Assertion');
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define('OPEN_BADGES_V2_TYPE_BADGE', 'BadgeClass');
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define('OPEN_BADGES_V2_TYPE_ISSUER', 'Issuer');
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define('OPEN_BADGES_V2_TYPE_ENDORSEMENT', 'Endorsement');
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define('OPEN_BADGES_V2_TYPE_AUTHOR', 'Author');
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// Global badge class has been moved to the component namespace.
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class_alias('\core_badges\badge', 'badge');
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/**
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* Sends notifications to users about awarded badges.
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*
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* @param badge $badge Badge that was issued
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* @param int $userid Recipient ID
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* @param string $issued Unique hash of an issued badge
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* @param string $filepathhash File path hash of an issued badge for attachments
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*/
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function badges_notify_badge_award(badge $badge, $userid, $issued, $filepathhash) {
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global $CFG, $DB;
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$admin = get_admin();
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$userfrom = new stdClass();
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$userfrom->id = $admin->id;
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$userfrom->email = !empty($CFG->badges_defaultissuercontact) ? $CFG->badges_defaultissuercontact : $admin->email;
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foreach (get_all_user_name_fields() as $addname) {
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$userfrom->$addname = !empty($CFG->badges_defaultissuername) ? '' : $admin->$addname;
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}
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$userfrom->firstname = !empty($CFG->badges_defaultissuername) ? $CFG->badges_defaultissuername : $admin->firstname;
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$userfrom->maildisplay = true;
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$issuedlink = html_writer::link(new moodle_url('/badges/badge.php', array('hash' => $issued)), $badge->name);
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$userto = $DB->get_record('user', array('id' => $userid), '*', MUST_EXIST);
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$params = new stdClass();
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$params->badgename = $badge->name;
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$params->username = fullname($userto);
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$params->badgelink = $issuedlink;
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$message = badge_message_from_template($badge->message, $params);
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$plaintext = html_to_text($message);
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// Notify recipient.
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$eventdata = new \core\message\message();
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$eventdata->courseid = is_null($badge->courseid) ? SITEID : $badge->courseid; // Profile/site come with no courseid.
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$eventdata->component = 'moodle';
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$eventdata->name = 'badgerecipientnotice';
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$eventdata->userfrom = $userfrom;
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$eventdata->userto = $userto;
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$eventdata->notification = 1;
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$eventdata->subject = $badge->messagesubject;
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$eventdata->fullmessage = $plaintext;
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$eventdata->fullmessageformat = FORMAT_HTML;
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$eventdata->fullmessagehtml = $message;
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$eventdata->smallmessage = '';
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$eventdata->customdata = [
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'notificationiconurl' => moodle_url::make_pluginfile_url(
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$badge->get_context()->id, 'badges', 'badgeimage', $badge->id, '/', 'f1')->out(),
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'hash' => $issued,
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];
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// Attach badge image if possible.
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if (!empty($CFG->allowattachments) && $badge->attachment && is_string($filepathhash)) {
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$fs = get_file_storage();
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$file = $fs->get_file_by_hash($filepathhash);
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$eventdata->attachment = $file;
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$eventdata->attachname = str_replace(' ', '_', $badge->name) . ".png";
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message_send($eventdata);
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} else {
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message_send($eventdata);
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}
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// Notify badge creator about the award if they receive notifications every time.
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if ($badge->notification == 1) {
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$userfrom = core_user::get_noreply_user();
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$userfrom->maildisplay = true;
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$creator = $DB->get_record('user', array('id' => $badge->usercreated), '*', MUST_EXIST);
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$a = new stdClass();
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$a->user = fullname($userto);
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$a->link = $issuedlink;
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$creatormessage = get_string('creatorbody', 'badges', $a);
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$creatorsubject = get_string('creatorsubject', 'badges', $badge->name);
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$eventdata = new \core\message\message();
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$eventdata->courseid = $badge->courseid;
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$eventdata->component = 'moodle';
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$eventdata->name = 'badgecreatornotice';
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$eventdata->userfrom = $userfrom;
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$eventdata->userto = $creator;
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$eventdata->notification = 1;
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$eventdata->subject = $creatorsubject;
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$eventdata->fullmessage = html_to_text($creatormessage);
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$eventdata->fullmessageformat = FORMAT_HTML;
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$eventdata->fullmessagehtml = $creatormessage;
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$eventdata->smallmessage = '';
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$eventdata->customdata = [
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'notificationiconurl' => moodle_url::make_pluginfile_url(
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$badge->get_context()->id, 'badges', 'badgeimage', $badge->id, '/', 'f1')->out(),
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'hash' => $issued,
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];
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message_send($eventdata);
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$DB->set_field('badge_issued', 'issuernotified', time(), array('badgeid' => $badge->id, 'userid' => $userid));
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}
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}
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/**
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* Caclulates date for the next message digest to badge creators.
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*
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* @param in $schedule Type of message schedule BADGE_MESSAGE_DAILY|BADGE_MESSAGE_WEEKLY|BADGE_MESSAGE_MONTHLY.
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* @return int Timestamp for next cron
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*/
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function badges_calculate_message_schedule($schedule) {
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$nextcron = 0;
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switch ($schedule) {
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case BADGE_MESSAGE_DAILY:
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$nextcron = time() + 60 * 60 * 24;
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break;
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case BADGE_MESSAGE_WEEKLY:
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$nextcron = time() + 60 * 60 * 24 * 7;
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break;
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case BADGE_MESSAGE_MONTHLY:
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$nextcron = time() + 60 * 60 * 24 * 7 * 30;
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break;
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}
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return $nextcron;
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}
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/**
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* Replaces variables in a message template and returns text ready to be emailed to a user.
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*
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* @param string $message Message body.
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* @return string Message with replaced values
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*/
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function badge_message_from_template($message, $params) {
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$msg = $message;
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foreach ($params as $key => $value) {
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$msg = str_replace("%$key%", $value, $msg);
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}
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return $msg;
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}
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/**
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* Get all badges.
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*
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* @param int Type of badges to return
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* @param int Course ID for course badges
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* @param string $sort An SQL field to sort by
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* @param string $dir The sort direction ASC|DESC
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* @param int $page The page or records to return
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* @param int $perpage The number of records to return per page
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* @param int $user User specific search
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* @return array $badge Array of records matching criteria
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*/
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function badges_get_badges($type, $courseid = 0, $sort = '', $dir = '', $page = 0, $perpage = BADGE_PERPAGE, $user = 0) {
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global $DB;
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$records = array();
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$params = array();
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$where = "b.status != :deleted AND b.type = :type ";
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$params['deleted'] = BADGE_STATUS_ARCHIVED;
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$userfields = array('b.id, b.name, b.status');
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$usersql = "";
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if ($user != 0) {
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$userfields[] = 'bi.dateissued';
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$userfields[] = 'bi.uniquehash';
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$usersql = " LEFT JOIN {badge_issued} bi ON b.id = bi.badgeid AND bi.userid = :userid ";
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$params['userid'] = $user;
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$where .= " AND (b.status = 1 OR b.status = 3) ";
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}
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$fields = implode(', ', $userfields);
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if ($courseid != 0 ) {
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$where .= "AND b.courseid = :courseid ";
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$params['courseid'] = $courseid;
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}
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$sorting = (($sort != '' && $dir != '') ? 'ORDER BY ' . $sort . ' ' . $dir : '');
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$params['type'] = $type;
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$sql = "SELECT $fields FROM {badge} b $usersql WHERE $where $sorting";
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$records = $DB->get_records_sql($sql, $params, $page * $perpage, $perpage);
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$badges = array();
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foreach ($records as $r) {
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$badge = new badge($r->id);
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$badges[$r->id] = $badge;
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if ($user != 0) {
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$badges[$r->id]->dateissued = $r->dateissued;
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$badges[$r->id]->uniquehash = $r->uniquehash;
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} else {
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$badges[$r->id]->awards = $DB->count_records_sql('SELECT COUNT(b.userid)
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FROM {badge_issued} b INNER JOIN {user} u ON b.userid = u.id
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WHERE b.badgeid = :badgeid AND u.deleted = 0', array('badgeid' => $badge->id));
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$badges[$r->id]->statstring = $badge->get_status_name();
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}
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}
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return $badges;
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}
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/**
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* Get badges for a specific user.
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*
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* @param int $userid User ID
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* @param int $courseid Badges earned by a user in a specific course
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* @param int $page The page or records to return
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* @param int $perpage The number of records to return per page
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* @param string $search A simple string to search for
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* @param bool $onlypublic Return only public badges
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* @return array of badges ordered by decreasing date of issue
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*/
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function badges_get_user_badges($userid, $courseid = 0, $page = 0, $perpage = 0, $search = '', $onlypublic = false) {
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global $CFG, $DB;
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$params = array(
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'userid' => $userid
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);
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$sql = 'SELECT
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bi.uniquehash,
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bi.dateissued,
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bi.dateexpire,
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bi.id as issuedid,
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bi.visible,
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u.email,
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b.*
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FROM
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{badge} b,
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{badge_issued} bi,
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{user} u
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WHERE b.id = bi.badgeid
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AND u.id = bi.userid
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AND bi.userid = :userid';
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if (!empty($search)) {
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$sql .= ' AND (' . $DB->sql_like('b.name', ':search', false) . ') ';
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$params['search'] = '%'.$DB->sql_like_escape($search).'%';
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}
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if ($onlypublic) {
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$sql .= ' AND (bi.visible = 1) ';
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}
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if (empty($CFG->badges_allowcoursebadges)) {
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$sql .= ' AND b.courseid IS NULL';
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} else if ($courseid != 0) {
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$sql .= ' AND (b.courseid = :courseid) ';
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$params['courseid'] = $courseid;
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}
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$sql .= ' ORDER BY bi.dateissued DESC';
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$badges = $DB->get_records_sql($sql, $params, $page * $perpage, $perpage);
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return $badges;
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}
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/**
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* Extends the course administration navigation with the Badges page
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*
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* @param navigation_node $coursenode
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* @param object $course
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*/
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function badges_add_course_navigation(navigation_node $coursenode, stdClass $course) {
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global $CFG, $SITE;
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$coursecontext = context_course::instance($course->id);
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$isfrontpage = (!$coursecontext || $course->id == $SITE->id);
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$canmanage = has_any_capability(array('moodle/badges:viewawarded',
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'moodle/badges:createbadge',
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'moodle/badges:awardbadge',
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'moodle/badges:configurecriteria',
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'moodle/badges:configuremessages',
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'moodle/badges:configuredetails',
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'moodle/badges:deletebadge'), $coursecontext);
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if (!empty($CFG->enablebadges) && !empty($CFG->badges_allowcoursebadges) && !$isfrontpage && $canmanage) {
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$coursenode->add(get_string('coursebadges', 'badges'), null,
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navigation_node::TYPE_CONTAINER, null, 'coursebadges',
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new pix_icon('i/badge', get_string('coursebadges', 'badges')));
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$url = new moodle_url('/badges/index.php', array('type' => BADGE_TYPE_COURSE, 'id' => $course->id));
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$coursenode->get('coursebadges')->add(get_string('managebadges', 'badges'), $url,
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navigation_node::TYPE_SETTING, null, 'coursebadges');
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if (has_capability('moodle/badges:createbadge', $coursecontext)) {
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$url = new moodle_url('/badges/newbadge.php', array('type' => BADGE_TYPE_COURSE, 'id' => $course->id));
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$coursenode->get('coursebadges')->add(get_string('newbadge', 'badges'), $url,
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navigation_node::TYPE_SETTING, null, 'newbadge');
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}
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}
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}
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/**
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* Triggered when badge is manually awarded.
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*
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* @param object $data
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* @return boolean
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*/
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function badges_award_handle_manual_criteria_review(stdClass $data) {
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$criteria = $data->crit;
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$userid = $data->userid;
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$badge = new badge($criteria->badgeid);
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if (!$badge->is_active() || $badge->is_issued($userid)) {
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return true;
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}
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if ($criteria->review($userid)) {
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$criteria->mark_complete($userid);
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if ($badge->criteria[BADGE_CRITERIA_TYPE_OVERALL]->review($userid)) {
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$badge->criteria[BADGE_CRITERIA_TYPE_OVERALL]->mark_complete($userid);
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$badge->issue($userid);
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}
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}
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return true;
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}
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/**
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* Process badge image from form data
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*
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* @param badge $badge Badge object
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* @param string $iconfile Original file
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*/
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function badges_process_badge_image(badge $badge, $iconfile) {
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global $CFG, $USER;
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require_once($CFG->libdir. '/gdlib.php');
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if (!empty($CFG->gdversion)) {
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process_new_icon($badge->get_context(), 'badges', 'badgeimage', $badge->id, $iconfile, true);
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@unlink($iconfile);
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// Clean up file draft area after badge image has been saved.
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$context = context_user::instance($USER->id, MUST_EXIST);
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$fs = get_file_storage();
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$fs->delete_area_files($context->id, 'user', 'draft');
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}
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}
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/**
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* Print badge image.
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*
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* @param badge $badge Badge object
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* @param stdClass $context
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* @param string $size
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*/
|
|
function print_badge_image(badge $badge, stdClass $context, $size = 'small') {
|
|
$fsize = ($size == 'small') ? 'f2' : 'f1';
|
|
|
|
$imageurl = moodle_url::make_pluginfile_url($context->id, 'badges', 'badgeimage', $badge->id, '/', $fsize, false);
|
|
// Appending a random parameter to image link to forse browser reload the image.
|
|
$imageurl->param('refresh', rand(1, 10000));
|
|
$attributes = array('src' => $imageurl, 'alt' => s($badge->name), 'class' => 'activatebadge');
|
|
|
|
return html_writer::empty_tag('img', $attributes);
|
|
}
|
|
|
|
/**
|
|
* Bake issued badge.
|
|
*
|
|
* @param string $hash Unique hash of an issued badge.
|
|
* @param int $badgeid ID of the original badge.
|
|
* @param int $userid ID of badge recipient (optional).
|
|
* @param boolean $pathhash Return file pathhash instead of image url (optional).
|
|
* @return string|url Returns either new file path hash or new file URL
|
|
*/
|
|
function badges_bake($hash, $badgeid, $userid = 0, $pathhash = false) {
|
|
global $CFG, $USER;
|
|
require_once(__DIR__ . '/../badges/lib/bakerlib.php');
|
|
|
|
$badge = new badge($badgeid);
|
|
$badge_context = $badge->get_context();
|
|
$userid = ($userid) ? $userid : $USER->id;
|
|
$user_context = context_user::instance($userid);
|
|
|
|
$fs = get_file_storage();
|
|
if (!$fs->file_exists($user_context->id, 'badges', 'userbadge', $badge->id, '/', $hash . '.png')) {
|
|
if ($file = $fs->get_file($badge_context->id, 'badges', 'badgeimage', $badge->id, '/', 'f3.png')) {
|
|
$contents = $file->get_content();
|
|
|
|
$filehandler = new PNG_MetaDataHandler($contents);
|
|
$assertion = new moodle_url('/badges/assertion.php', array('b' => $hash));
|
|
if ($filehandler->check_chunks("tEXt", "openbadges")) {
|
|
// Add assertion URL tExt chunk.
|
|
$newcontents = $filehandler->add_chunks("tEXt", "openbadges", $assertion->out(false));
|
|
$fileinfo = array(
|
|
'contextid' => $user_context->id,
|
|
'component' => 'badges',
|
|
'filearea' => 'userbadge',
|
|
'itemid' => $badge->id,
|
|
'filepath' => '/',
|
|
'filename' => $hash . '.png',
|
|
);
|
|
|
|
// Create a file with added contents.
|
|
$newfile = $fs->create_file_from_string($fileinfo, $newcontents);
|
|
if ($pathhash) {
|
|
return $newfile->get_pathnamehash();
|
|
}
|
|
}
|
|
} else {
|
|
debugging('Error baking badge image!', DEBUG_DEVELOPER);
|
|
return;
|
|
}
|
|
}
|
|
|
|
// If file exists and we just need its path hash, return it.
|
|
if ($pathhash) {
|
|
$file = $fs->get_file($user_context->id, 'badges', 'userbadge', $badge->id, '/', $hash . '.png');
|
|
return $file->get_pathnamehash();
|
|
}
|
|
|
|
$fileurl = moodle_url::make_pluginfile_url($user_context->id, 'badges', 'userbadge', $badge->id, '/', $hash, true);
|
|
return $fileurl;
|
|
}
|
|
|
|
/**
|
|
* Returns external backpack settings and badges from this backpack.
|
|
*
|
|
* This function first checks if badges for the user are cached and
|
|
* tries to retrieve them from the cache. Otherwise, badges are obtained
|
|
* through curl request to the backpack.
|
|
*
|
|
* @param int $userid Backpack user ID.
|
|
* @param boolean $refresh Refresh badges collection in cache.
|
|
* @return null|object Returns null is there is no backpack or object with backpack settings.
|
|
*/
|
|
function get_backpack_settings($userid, $refresh = false) {
|
|
global $DB;
|
|
|
|
// Try to get badges from cache first.
|
|
$badgescache = cache::make('core', 'externalbadges');
|
|
$out = $badgescache->get($userid);
|
|
if ($out !== false && !$refresh) {
|
|
return $out;
|
|
}
|
|
// Get badges through curl request to the backpack.
|
|
$record = $DB->get_record('badge_backpack', array('userid' => $userid));
|
|
if ($record) {
|
|
$sitebackpack = badges_get_site_backpack($record->externalbackpackid);
|
|
$backpack = new \core_badges\backpack_api($sitebackpack, $record);
|
|
$out = new stdClass();
|
|
$out->backpackid = $sitebackpack->id;
|
|
|
|
if ($collections = $DB->get_records('badge_external', array('backpackid' => $record->id))) {
|
|
$out->totalcollections = count($collections);
|
|
$out->totalbadges = 0;
|
|
$out->badges = array();
|
|
foreach ($collections as $collection) {
|
|
$badges = $backpack->get_badges($collection, true);
|
|
if (!empty($badges)) {
|
|
$out->badges = array_merge($out->badges, $badges);
|
|
$out->totalbadges += count($badges);
|
|
} else {
|
|
$out->badges = array_merge($out->badges, array());
|
|
}
|
|
}
|
|
} else {
|
|
$out->totalbadges = 0;
|
|
$out->totalcollections = 0;
|
|
}
|
|
|
|
$badgescache->set($userid, $out);
|
|
return $out;
|
|
}
|
|
|
|
return null;
|
|
}
|
|
|
|
/**
|
|
* Download all user badges in zip archive.
|
|
*
|
|
* @param int $userid ID of badge owner.
|
|
*/
|
|
function badges_download($userid) {
|
|
global $CFG, $DB;
|
|
$context = context_user::instance($userid);
|
|
$records = $DB->get_records('badge_issued', array('userid' => $userid));
|
|
|
|
// Get list of files to download.
|
|
$fs = get_file_storage();
|
|
$filelist = array();
|
|
foreach ($records as $issued) {
|
|
$badge = new badge($issued->badgeid);
|
|
// Need to make image name user-readable and unique using filename safe characters.
|
|
$name = $badge->name . ' ' . userdate($issued->dateissued, '%d %b %Y') . ' ' . hash('crc32', $badge->id);
|
|
$name = str_replace(' ', '_', $name);
|
|
$name = clean_param($name, PARAM_FILE);
|
|
if ($file = $fs->get_file($context->id, 'badges', 'userbadge', $issued->badgeid, '/', $issued->uniquehash . '.png')) {
|
|
$filelist[$name . '.png'] = $file;
|
|
}
|
|
}
|
|
|
|
// Zip files and sent them to a user.
|
|
$tempzip = tempnam($CFG->tempdir.'/', 'mybadges');
|
|
$zipper = new zip_packer();
|
|
if ($zipper->archive_to_pathname($filelist, $tempzip)) {
|
|
send_temp_file($tempzip, 'badges.zip');
|
|
} else {
|
|
debugging("Problems with archiving the files.", DEBUG_DEVELOPER);
|
|
die;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Checks if badges can be pushed to external backpack.
|
|
*
|
|
* @return string Code of backpack accessibility status.
|
|
*/
|
|
function badges_check_backpack_accessibility() {
|
|
if (defined('BEHAT_SITE_RUNNING') && BEHAT_SITE_RUNNING) {
|
|
// For behat sites, do not poll the remote badge site.
|
|
// Behat sites should not be available, but we should pretend as though they are.
|
|
return 'available';
|
|
}
|
|
|
|
if (badges_open_badges_backpack_api() == OPEN_BADGES_V2) {
|
|
return 'available';
|
|
}
|
|
|
|
global $CFG;
|
|
include_once $CFG->libdir . '/filelib.php';
|
|
|
|
// Using fake assertion url to check whether backpack can access the web site.
|
|
$fakeassertion = new moodle_url('/badges/assertion.php', array('b' => 'abcd1234567890'));
|
|
|
|
// Curl request to backpack baker.
|
|
$curl = new curl();
|
|
$options = array(
|
|
'FRESH_CONNECT' => true,
|
|
'RETURNTRANSFER' => true,
|
|
'HEADER' => 0,
|
|
'CONNECTTIMEOUT' => 2,
|
|
);
|
|
// BADGE_BACKPACKURL and the "baker" API is deprecated and should never be used in future.
|
|
$location = BADGE_BACKPACKURL . '/baker';
|
|
$out = $curl->get($location, array('assertion' => $fakeassertion->out(false)), $options);
|
|
|
|
$data = json_decode($out);
|
|
if (!empty($curl->error)) {
|
|
return 'curl-request-timeout';
|
|
} else {
|
|
if (isset($data->code) && $data->code == 'http-unreachable') {
|
|
return 'http-unreachable';
|
|
} else {
|
|
return 'available';
|
|
}
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* Checks if user has external backpack connected.
|
|
*
|
|
* @param int $userid ID of a user.
|
|
* @return bool True|False whether backpack connection exists.
|
|
*/
|
|
function badges_user_has_backpack($userid) {
|
|
global $DB;
|
|
return $DB->record_exists('badge_backpack', array('userid' => $userid));
|
|
}
|
|
|
|
/**
|
|
* Handles what happens to the course badges when a course is deleted.
|
|
*
|
|
* @param int $courseid course ID.
|
|
* @return void.
|
|
*/
|
|
function badges_handle_course_deletion($courseid) {
|
|
global $CFG, $DB;
|
|
include_once $CFG->libdir . '/filelib.php';
|
|
|
|
$systemcontext = context_system::instance();
|
|
$coursecontext = context_course::instance($courseid);
|
|
$fs = get_file_storage();
|
|
|
|
// Move badges images to the system context.
|
|
$fs->move_area_files_to_new_context($coursecontext->id, $systemcontext->id, 'badges', 'badgeimage');
|
|
|
|
// Get all course badges.
|
|
$badges = $DB->get_records('badge', array('type' => BADGE_TYPE_COURSE, 'courseid' => $courseid));
|
|
foreach ($badges as $badge) {
|
|
// Archive badges in this course.
|
|
$toupdate = new stdClass();
|
|
$toupdate->id = $badge->id;
|
|
$toupdate->type = BADGE_TYPE_SITE;
|
|
$toupdate->courseid = null;
|
|
$toupdate->status = BADGE_STATUS_ARCHIVED;
|
|
$DB->update_record('badge', $toupdate);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Loads JS files required for backpack support.
|
|
*
|
|
* @uses $CFG, $PAGE
|
|
* @return void
|
|
*/
|
|
function badges_setup_backpack_js() {
|
|
global $CFG, $PAGE;
|
|
if (!empty($CFG->badges_allowexternalbackpack)) {
|
|
if (badges_open_badges_backpack_api() == OPEN_BADGES_V1) {
|
|
$PAGE->requires->string_for_js('error:backpackproblem', 'badges');
|
|
// The issuer.js API is deprecated and should not be used in future.
|
|
$PAGE->requires->js(new moodle_url(BADGE_BACKPACKURL . '/issuer.js'), true);
|
|
// The backpack.js file is deprecated and should not be used in future.
|
|
$PAGE->requires->js('/badges/backpack.js', true);
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* No js files are required for backpack support.
|
|
* This only exists to directly support the custom V1 backpack api.
|
|
*
|
|
* @param boolean $checksite Call check site function.
|
|
* @return void
|
|
*/
|
|
function badges_local_backpack_js($checksite = false) {
|
|
global $CFG, $PAGE;
|
|
if (!empty($CFG->badges_allowexternalbackpack)) {
|
|
if (badges_open_badges_backpack_api() == OPEN_BADGES_V1) {
|
|
$PAGE->requires->js('/badges/backpack.js', true);
|
|
if ($checksite) {
|
|
$PAGE->requires->js_init_call('check_site_access', null, false);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Create the backpack with this data.
|
|
*
|
|
* @param stdClass $data The new backpack data.
|
|
* @return boolean
|
|
*/
|
|
function badges_create_site_backpack($data) {
|
|
global $DB;
|
|
$context = context_system::instance();
|
|
require_capability('moodle/badges:manageglobalsettings', $context);
|
|
|
|
$count = $DB->count_records('badge_external_backpack');
|
|
|
|
$backpack = new stdClass();
|
|
$backpack->apiversion = $data->apiversion;
|
|
$backpack->backpackapiurl = $data->backpackapiurl;
|
|
$backpack->backpackweburl = $data->backpackweburl;
|
|
$backpack->sortorder = $count;
|
|
$DB->insert_record('badge_external_backpack', $backpack);
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* Update the backpack with this id.
|
|
*
|
|
* @param integer $id The backpack to edit
|
|
* @param stdClass $data The new backpack data.
|
|
* @return boolean
|
|
*/
|
|
function badges_update_site_backpack($id, $data) {
|
|
global $DB;
|
|
$context = context_system::instance();
|
|
require_capability('moodle/badges:manageglobalsettings', $context);
|
|
|
|
if ($backpack = badges_get_site_backpack($id)) {
|
|
$backpack = new stdClass();
|
|
$backpack->id = $id;
|
|
$backpack->apiversion = $data->apiversion;
|
|
$backpack->backpackweburl = $data->backpackweburl;
|
|
$backpack->backpackapiurl = $data->backpackapiurl;
|
|
$backpack->password = $data->password;
|
|
$DB->update_record('badge_external_backpack', $backpack);
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* Is any backpack enabled that supports open badges V1?
|
|
* @return boolean
|
|
*/
|
|
function badges_open_badges_backpack_api() {
|
|
global $CFG;
|
|
|
|
$backpack = badges_get_site_backpack($CFG->badges_site_backpack);
|
|
|
|
if (empty($backpack->apiversion)) {
|
|
return OPEN_BADGES_V2;
|
|
}
|
|
return $backpack->apiversion;
|
|
}
|
|
|
|
/**
|
|
* Get a site backpacks by id or url.
|
|
*
|
|
* @param int $id The backpack id.
|
|
* @return array(stdClass)
|
|
*/
|
|
function badges_get_site_backpack($id) {
|
|
global $DB;
|
|
|
|
return $DB->get_record('badge_external_backpack', ['id' => $id]);
|
|
}
|
|
|
|
/**
|
|
* List the backpacks at site level.
|
|
*
|
|
* @return array(stdClass)
|
|
*/
|
|
function badges_get_site_backpacks() {
|
|
global $DB, $CFG;
|
|
|
|
$all = $DB->get_records('badge_external_backpack');
|
|
|
|
foreach ($all as $key => $bp) {
|
|
if ($bp->id == $CFG->badges_site_backpack) {
|
|
$all[$key]->sitebackpack = true;
|
|
} else {
|
|
$all[$key]->sitebackpack = false;
|
|
}
|
|
}
|
|
return $all;
|
|
}
|
|
|
|
/**
|
|
* List the supported badges api versions.
|
|
*
|
|
* @return array(version)
|
|
*/
|
|
function badges_get_badge_api_versions() {
|
|
return [
|
|
OPEN_BADGES_V1 => get_string('openbadgesv1', 'badges'),
|
|
OPEN_BADGES_V2 => get_string('openbadgesv2', 'badges')
|
|
];
|
|
}
|
|
|
|
/**
|
|
* Called on install or upgrade to create default list of backpacks a user can connect to.
|
|
*
|
|
* @return void
|
|
*/
|
|
function badges_install_default_backpacks() {
|
|
global $DB;
|
|
|
|
$record = new stdClass();
|
|
$record->backpackweburl = BADGE_BACKPACKWEBURL;
|
|
$record->backpackapiurl = BADGE_BACKPACKAPIURL;
|
|
$record->apiversion = OPEN_BADGES_V1;
|
|
$record->sortorder = 0;
|
|
$record->password = '';
|
|
|
|
$bpid = 0;
|
|
if (!($bp = $DB->get_record('badge_external_backpack', array('backpackapiurl' => $record->backpackapiurl)))) {
|
|
$bpid = $DB->insert_record('badge_external_backpack', $record);
|
|
} else {
|
|
$bpid = $bp->id;
|
|
}
|
|
set_config('badges_site_backpack', $bpid);
|
|
|
|
// All existing backpacks default to V1.
|
|
$DB->set_field('badge_backpack', 'externalbackpackid', $bpid);
|
|
|
|
$record = new stdClass();
|
|
$record->backpackapiurl = BADGRIO_BACKPACKAPIURL;
|
|
$record->backpackweburl = BADGRIO_BACKPACKWEBURL;
|
|
$record->apiversion = OPEN_BADGES_V2;
|
|
$record->sortorder = 1;
|
|
$record->password = '';
|
|
|
|
if (!$DB->record_exists('badge_external_backpack', array('backpackapiurl' => $record->backpackapiurl))) {
|
|
$DB->insert_record('badge_external_backpack', $record);
|
|
}
|
|
|
|
}
|
|
|
|
/**
|
|
* Get the default issuer for a badge from this site.
|
|
*
|
|
* @return array
|
|
*/
|
|
function badges_get_default_issuer() {
|
|
global $CFG, $SITE;
|
|
|
|
$issuer = array();
|
|
$issuerurl = new moodle_url('/badges/issuer.php');
|
|
$issuer['name'] = $CFG->badges_defaultissuername;
|
|
if (empty($issuer['name'])) {
|
|
$issuer['name'] = $SITE->fullname ? $SITE->fullname : $SITE->shortname;
|
|
}
|
|
$issuer['url'] = $issuerurl->out(false);
|
|
$issuer['email'] = $CFG->badges_defaultissuercontact;
|
|
$issuer['@context'] = OPEN_BADGES_V2_CONTEXT;
|
|
$issuer['id'] = $issuerurl->out(false);
|
|
$issuer['type'] = OPEN_BADGES_V2_TYPE_ISSUER;
|
|
return $issuer;
|
|
}
|
|
|
|
/**
|
|
* Disconnect from the user backpack by deleting the user preferences.
|
|
*
|
|
* @param integer $userid The user to diconnect.
|
|
* @return boolean
|
|
*/
|
|
function badges_disconnect_user_backpack($userid) {
|
|
global $USER;
|
|
|
|
// We can only change backpack settings for our own real backpack.
|
|
if ($USER->id != $userid ||
|
|
\core\session\manager::is_loggedinas()) {
|
|
|
|
return false;
|
|
}
|
|
|
|
unset_user_preference('badges_email_verify_secret');
|
|
unset_user_preference('badges_email_verify_address');
|
|
unset_user_preference('badges_email_verify_backpackid');
|
|
unset_user_preference('badges_email_verify_password');
|
|
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* Used to remember which objects we connected with a backpack before.
|
|
*
|
|
* @param integer $sitebackpackid The site backpack to connect to.
|
|
* @param string $type The type of this remote object.
|
|
* @param string $internalid The id for this object on the Moodle site.
|
|
* @return mixed The id or false if it doesn't exist.
|
|
*/
|
|
function badges_external_get_mapping($sitebackpackid, $type, $internalid) {
|
|
global $DB;
|
|
// Return externalid if it exists.
|
|
$params = [
|
|
'sitebackpackid' => $sitebackpackid,
|
|
'type' => $type,
|
|
'internalid' => $internalid
|
|
];
|
|
|
|
$record = $DB->get_record('badge_external_identifier', $params, 'externalid', IGNORE_MISSING);
|
|
if ($record) {
|
|
return $record->externalid;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* Save the info about which objects we connected with a backpack before.
|
|
*
|
|
* @param integer $sitebackpackid The site backpack to connect to.
|
|
* @param string $type The type of this remote object.
|
|
* @param string $internalid The id for this object on the Moodle site.
|
|
* @param string $externalid The id of this object on the remote site.
|
|
* @return boolean
|
|
*/
|
|
function badges_external_create_mapping($sitebackpackid, $type, $internalid, $externalid) {
|
|
global $DB;
|
|
|
|
$params = [
|
|
'sitebackpackid' => $sitebackpackid,
|
|
'type' => $type,
|
|
'internalid' => $internalid,
|
|
'externalid' => $externalid
|
|
];
|
|
|
|
return $DB->insert_record('badge_external_identifier', $params);
|
|
}
|
|
|
|
/**
|
|
* Delete all external mapping information for a backpack.
|
|
*
|
|
* @param integer $sitebackpackid The site backpack to connect to.
|
|
* @return boolean
|
|
*/
|
|
function badges_external_delete_mappings($sitebackpackid) {
|
|
global $DB;
|
|
|
|
$params = ['sitebackpackid' => $sitebackpackid];
|
|
|
|
return $DB->delete_records('badge_external_identifier', $params);
|
|
}
|
|
|
|
/**
|
|
* Delete a specific external mapping information for a backpack.
|
|
*
|
|
* @param integer $sitebackpackid The site backpack to connect to.
|
|
* @param string $type The type of this remote object.
|
|
* @param string $internalid The id for this object on the Moodle site.
|
|
* @return boolean
|
|
*/
|
|
function badges_external_delete_mapping($sitebackpackid, $type, $internalid) {
|
|
global $DB;
|
|
|
|
$params = [
|
|
'sitebackpackid' => $sitebackpackid,
|
|
'type' => $type,
|
|
'internalid' => $internalid
|
|
];
|
|
|
|
$DB->delete_record('badge_external_identifier', $params);
|
|
}
|
|
|
|
/**
|
|
* Create and send a verification email to the email address supplied.
|
|
*
|
|
* Since we're not sending this email to a user, email_to_user can't be used
|
|
* but this function borrows largely the code from that process.
|
|
*
|
|
* @param string $email the email address to send the verification email to.
|
|
* @param int $backpackid the id of the backpack to connect to
|
|
* @param string $backpackpassword the user entered password to connect to this backpack
|
|
* @return true if the email was sent successfully, false otherwise.
|
|
*/
|
|
function badges_send_verification_email($email, $backpackid, $backpackpassword) {
|
|
global $DB, $USER;
|
|
|
|
// Store a user secret (badges_email_verify_secret) and the address (badges_email_verify_address) as users prefs.
|
|
// The address will be used by edit_backpack_form for display during verification and to facilitate the resending
|
|
// of verification emails to said address.
|
|
$secret = random_string(15);
|
|
set_user_preference('badges_email_verify_secret', $secret);
|
|
set_user_preference('badges_email_verify_address', $email);
|
|
set_user_preference('badges_email_verify_backpackid', $backpackid);
|
|
set_user_preference('badges_email_verify_password', $backpackpassword);
|
|
|
|
// To, from.
|
|
$tempuser = $DB->get_record('user', array('id' => $USER->id), '*', MUST_EXIST);
|
|
$tempuser->email = $email;
|
|
$noreplyuser = core_user::get_noreply_user();
|
|
|
|
// Generate the verification email body.
|
|
$verificationurl = '/badges/backpackemailverify.php';
|
|
$verificationurl = new moodle_url($verificationurl);
|
|
$verificationpath = $verificationurl->out(false);
|
|
|
|
$site = get_site();
|
|
$args = new stdClass();
|
|
$args->link = $verificationpath . '?data='. $secret;
|
|
$args->sitename = $site->fullname;
|
|
$args->admin = generate_email_signoff();
|
|
|
|
$messagesubject = get_string('backpackemailverifyemailsubject', 'badges', $site->fullname);
|
|
$messagetext = get_string('backpackemailverifyemailbody', 'badges', $args);
|
|
$messagehtml = text_to_html($messagetext, false, false, true);
|
|
|
|
return email_to_user($tempuser, $noreplyuser, $messagesubject, $messagetext, $messagehtml);
|
|
}
|
|
|
|
/**
|
|
* Return all the enabled criteria types for this site.
|
|
*
|
|
* @param boolean $enabled
|
|
* @return array
|
|
*/
|
|
function badges_list_criteria($enabled = true) {
|
|
global $CFG;
|
|
|
|
$types = array(
|
|
BADGE_CRITERIA_TYPE_OVERALL => 'overall',
|
|
BADGE_CRITERIA_TYPE_ACTIVITY => 'activity',
|
|
BADGE_CRITERIA_TYPE_MANUAL => 'manual',
|
|
BADGE_CRITERIA_TYPE_SOCIAL => 'social',
|
|
BADGE_CRITERIA_TYPE_COURSE => 'course',
|
|
BADGE_CRITERIA_TYPE_COURSESET => 'courseset',
|
|
BADGE_CRITERIA_TYPE_PROFILE => 'profile',
|
|
BADGE_CRITERIA_TYPE_BADGE => 'badge',
|
|
BADGE_CRITERIA_TYPE_COHORT => 'cohort',
|
|
BADGE_CRITERIA_TYPE_COMPETENCY => 'competency',
|
|
);
|
|
if ($enabled) {
|
|
foreach ($types as $key => $type) {
|
|
$class = 'award_criteria_' . $type;
|
|
$file = $CFG->dirroot . '/badges/criteria/' . $class . '.php';
|
|
if (file_exists($file)) {
|
|
require_once($file);
|
|
|
|
if (!$class::is_enabled()) {
|
|
unset($types[$key]);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
return $types;
|
|
}
|
|
|
|
/**
|
|
* Check if any badge has records for competencies.
|
|
*
|
|
* @param array $competencyids Array of competencies ids.
|
|
* @return boolean Return true if competencies were found in any badge.
|
|
*/
|
|
function badge_award_criteria_competency_has_records_for_competencies($competencyids) {
|
|
global $DB;
|
|
|
|
list($insql, $params) = $DB->get_in_or_equal($competencyids, SQL_PARAMS_NAMED);
|
|
|
|
$sql = "SELECT DISTINCT bc.badgeid
|
|
FROM {badge_criteria} bc
|
|
JOIN {badge_criteria_param} bcp ON bc.id = bcp.critid
|
|
WHERE bc.criteriatype = :criteriatype AND bcp.value $insql";
|
|
$params['criteriatype'] = BADGE_CRITERIA_TYPE_COMPETENCY;
|
|
|
|
return $DB->record_exists_sql($sql, $params);
|
|
}
|
|
|
|
/**
|
|
* Creates single message for all notification and sends it out
|
|
*
|
|
* @param object $badge A badge which is notified about.
|
|
*/
|
|
function badge_assemble_notification(stdClass $badge) {
|
|
global $DB;
|
|
|
|
$userfrom = core_user::get_noreply_user();
|
|
$userfrom->maildisplay = true;
|
|
|
|
if ($msgs = $DB->get_records_select('badge_issued', 'issuernotified IS NULL AND badgeid = ?', array($badge->id))) {
|
|
// Get badge creator.
|
|
$creator = $DB->get_record('user', array('id' => $badge->creator), '*', MUST_EXIST);
|
|
$creatorsubject = get_string('creatorsubject', 'badges', $badge->name);
|
|
$creatormessage = '';
|
|
|
|
// Put all messages in one digest.
|
|
foreach ($msgs as $msg) {
|
|
$issuedlink = html_writer::link(new moodle_url('/badges/badge.php', array('hash' => $msg->uniquehash)), $badge->name);
|
|
$recipient = $DB->get_record('user', array('id' => $msg->userid), '*', MUST_EXIST);
|
|
|
|
$a = new stdClass();
|
|
$a->user = fullname($recipient);
|
|
$a->link = $issuedlink;
|
|
$creatormessage .= get_string('creatorbody', 'badges', $a);
|
|
$DB->set_field('badge_issued', 'issuernotified', time(), array('badgeid' => $msg->badgeid, 'userid' => $msg->userid));
|
|
}
|
|
|
|
// Create a message object.
|
|
$eventdata = new \core\message\message();
|
|
$eventdata->courseid = SITEID;
|
|
$eventdata->component = 'moodle';
|
|
$eventdata->name = 'badgecreatornotice';
|
|
$eventdata->userfrom = $userfrom;
|
|
$eventdata->userto = $creator;
|
|
$eventdata->notification = 1;
|
|
$eventdata->subject = $creatorsubject;
|
|
$eventdata->fullmessage = format_text_email($creatormessage, FORMAT_HTML);
|
|
$eventdata->fullmessageformat = FORMAT_PLAIN;
|
|
$eventdata->fullmessagehtml = $creatormessage;
|
|
$eventdata->smallmessage = $creatorsubject;
|
|
|
|
message_send($eventdata);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Attempt to authenticate with the site backpack credentials and return an error
|
|
* if the authentication fails. If external backpacks are not enabled, this will
|
|
* not perform any test.
|
|
*
|
|
* @return string
|
|
*/
|
|
function badges_verify_site_backpack() {
|
|
global $OUTPUT, $CFG;
|
|
|
|
if (empty($CFG->badges_allowexternalbackpack)) {
|
|
return '';
|
|
}
|
|
|
|
$backpack = badges_get_site_backpack($CFG->badges_site_backpack);
|
|
|
|
if (empty($backpack->apiversion) || ($backpack->apiversion == OPEN_BADGES_V2)) {
|
|
$backpackapi = new \core_badges\backpack_api($backpack);
|
|
|
|
// Clear any cached access tokens in the session.
|
|
$backpackapi->clear_system_user_session();
|
|
|
|
// Now attempt a login with these credentials.
|
|
$result = $backpackapi->authenticate();
|
|
if (empty($result) || !empty($result->error)) {
|
|
$warning = $backpackapi->get_authentication_error();
|
|
|
|
$params = ['id' => $backpack->id, 'action' => 'edit'];
|
|
$backpackurl = (new moodle_url('/badges/backpacks.php', $params))->out(false);
|
|
|
|
$message = get_string('sitebackpackwarning', 'badges', ['url' => $backpackurl, 'warning' => $warning]);
|
|
$icon = $OUTPUT->pix_icon('i/warning', get_string('warning', 'moodle'));
|
|
return $OUTPUT->container($icon . $message, 'text-error');
|
|
}
|
|
}
|
|
return '';
|
|
}
|
|
|